#include<bits/stdc++.h>
using namespace std;
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
const int N=2e5+10;
#define INF 0x3f3f3f3f;
typedef long long int ll;
#define close(); std::ios::sync_with_stdio(false);cin.tie(0),cout.tie(0);
//----------------------------------------------------------------------------//

void solve()
{
	int a,b,c,d;
	cin>>a>>b>>c>>d;
	int sum=a+b+c+d;
	if(sum==0) cout<<0<<'\n';
	else if(sum>0&&sum<4) cout<<1<<'\n';
	else cout<<2<<'\n';


}

int main()
{
	close();
	int T; cin>>T;
	while (T--) solve();
	return 0;
}

